Milica5500 · CC BY-SA 4.0 · Image source

Quick facts

Length7–10 cm
Weight0.01–0.03 kg
Lifespan1–2 years
Gestation19–21 days
Offspring3–8 young
ActivityNocturnal
Mating seasonYear-round
NativeNo
IntroducedYes
CommonYes
Best timeYear-round

About House Mouse

The house mouse is a common rodent living closely alongside humans. It is often found in buildings, barns, and storage areas. House mice are highly adaptable.

Their diet is varied and includes grains and food scraps. They reproduce quickly under favorable conditions. House mice are common in inhabited areas across Iceland.

Habitat

Buildings, barns, and human structures

Diet

Seeds, grain, plant material and varied food associated with humans.

Social behaviour

May live in groups where food and shelter are abundant.
Last verified: 08/09/2026